Centuries: 7th century - 8th century - 9th century
Decades: 690s - 700s - 710s - 720s - 730s - 740s - 750s - 760s - 770s - 780s - 790s
Years: 740 741 742 743 744 745 746 747 748 749
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... Contents Dennis Gabor Dennis Gabor (Gábor Dénes) (1900-1979) was a Hungarian physicist. He invented holography in 1947, for ...